Disk cultivator.



' W. L. CLBVENGER.

DISK GULTIVATOE.

APPLICATION FILED JULYB. 1908.

935,297, Patented Sept. 22, 1909 @XWZW 4% mm 2 A Home INVEN R a UNITEDST TS PATENT @FFTQE.

DISK CULTIVATOR.

T 0 all whom it may concern:

Be it known that I, WALTER LEE CLEVEN- GER, a citizen of the UnitedStates, residing at Watson, in the county of Atchison and State ofMissouri, have invented a new and useful Improvement in DiskCultivators, of which the following is a specification.

My invention relates to improvements in disk cultivators, and appliesmore particularly to a disk scraper for use with listed corn cultivatorsand similar implements.

The object of the invention is the provision of a scraper which afteronce having been adjusted to the disk of a cultivator remains in itsadjusted relation, regardless of the necessary changes made in theposition of the disk as the cultivation of the soil proceeds. This endis accomplished by attaching and adjusting the scraping device to thesupporting shaft of each disk; it being understood that in this class ofimplements the disks are usually carried on separate and independentshafts.

A further object is to provide an adjust able scraping attachment whichwill be effective in its work and yet avoid the obj ection ofobstructing the passage of trash as the work proceeds.

In the accompanying drawings I have illustrated one example of thephysical embodiment of the invention, constructed according to the bestmode I have so far devised for the practical application of theprinciples.

Figure l is a plan view of a portion of a two-row listed corncultivator, to the disks of which my device is attached, the viewshowing as much of the implement as necessary to illustrate theapplication of the invention. Fig. 2 is a face view of a disk showing myimproved scraper attached, and Fig. 3 is an end View of Fig. 2.

As above stated the invention is shown applied to a two row listed corncultivator, a portion of which is designated by the numeral 1 in Fig. 1.This class of implements is usually provided with two pairs of disks s2, and my improved scraper is specially adapted for use with thesedisks. The disks 2 are supported in usual manner with their shafts 3journaled in the implement frame, and are of course rotatable on theirshafts.

My novel attachment consists of a bracket arm l, formed with a sleeve 5at one end,

Specification of Letters Patent.

Application fi1ed July 6, 1908.

Patented Sept. 28, 19%

Serial No. 442,151.

and a slotted angular extension 6, the sleeve being supported on a shaft3 and secured thereto in desired position by the set screw 5 The scraperblade 7 has a bent shank or arm 8 secured thereto, and the shank isadjustably secured to the slotted extension 6 of the bracket by means ofa bolt 9 passed through the slot in the extension. The eye 10 of thebolt receives the shank 8 which bears against the fiat broad surface ofthe extension and is held in place by the nut 11, the fiat side of theextension thus forming a wide contact face for the shank and insuring arigid connection of the parts.

The device is capable of a wide range of adjustment both vertically andhorizontally through the medium of the set screw 5 by which the bracketmay be set with relation to the disk, and the clamping device,consisting of the eye-bolt and nut in the slotted extension, permitsboth a vertical and horizontal adjustment of the scraper with relationto the disk; these adjustments being,

necessary and depending upon the character of the work required duringthe process of cultivation of the ground.

While I have illustrated the invention as applied to two-row corncultivators it will be understood that the disk scraper may be appliedto other similar implements where such use would be advantageous.

From the foregoing taken in connection with the drawings it is evidentthat I have provided an improved disk scraper which fulfils theconditions set forth as the pur pose of my invention.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

The combination with a shaft and a rotatable disk thereon, a sleeve onsaid shaft and a set screw for adjusting said parts, a vertical bracketintegral with said sleeve, a slotted horizontal extension formed on saidbracket and provided with plane vertical surfaces, an eye-bolt passedthrough said slotted extension, a scraper formed with a shank located insaid eyebolt, and a clampnut on said eye-bolt bearing against the sunface of said extension.

WVALTER LEE CLEVENGER. TVit-nesses J. B. FREDE, O. L. BAYLESS.

